What information is available about an Object?

The Object type has the following members:

Object Equals(Object obj)

Determine whether this object is equal to another object

Object IfNotNull(Block block)

If this object is not null, answer the result of evaluating the block; else answer null

Object IfNotNullElse(Block notNullBlock, Block nullBlock)

If this object is not null, answer the result of evaluating the first block; else answer the result of evaluating the second block

Object IfNull(Block block)

If this object is null, answer the result of evaluating the block; else answer null

Object IfNullElse(Block nullBlock, Block notNullBlock)

If this object is null, answer the result of evaluating the first block; else answer the result of evaluating the second block

Object IsNull

Answer true if this object is null; else false

String ToString

Answer this object converted to a string

Type Type

Answer the Type of this object

Examples

IsNull

        null.IsNull

true

This obviously begs the question, is IsNull the only member which can be called on null? Everything else returns "Error evaluating expression: No such property or function: UndefinedObject.<MemberName>"

Is null a WikiTalkWellKnownObject?

        "".IsNull

false

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